Since her death in 1997, the princess has been at the centre of a maelstrom of conspiracy theories - many of them stretching the far limits of credibility. On the eve of Lord Stevens's report on the Paris crash, is it time to lay her ghost to rest?

The American secret service was bugging Princess Diana's telephone conversations without the approval of the British security services on the night she died, according to the most comprehensive report on her death, to be published this week.